The 2018 Commonwealth Games, officially known as the XXI Commonwealth Games and also known as Gold Coast 2018, was an international multi-sport event for members of the Commonwealth that was held on the Gold Coast, Queensland, Australia, between 4 and 15 April 2018. It was the fifth time Australia had hosted the Commonwealth Games and the first time a major multi-sport had an equal number of events for male and female athletes.

The Commonwealth of Nations, often simply referred to as the Commonwealth, is an international association of 56 member states, the vast majority of which are former territories of the British Empire from which it developed. The chief institutions of the organisation are the Commonwealth Secretariat, which focuses on intergovernmental aspects, and the Commonwealth Foundation, which focuses on non-governmental relations among member states. Numerous organisations are associated with and operate within the Commonwealth.